42 lines
967 B
Go
42 lines
967 B
Go
package media
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type MasterPlaylist struct {
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VideoFeeds []VideoPlaylist
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AudioFeeds []AudioPlaylist
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}
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func NewMasterPlaylist(videoFeeds []VideoPlaylist, audioFeeds []AudioPlaylist) *MasterPlaylist {
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return &MasterPlaylist{
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VideoFeeds: videoFeeds,
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AudioFeeds: audioFeeds,
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}
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}
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func (m *MasterPlaylist) SelectBestQualityStreams() (*VideoPlaylist, *AudioPlaylist) {
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if len(m.VideoFeeds) == 0 {
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return nil, nil
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}
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bestVideo := m.VideoFeeds[0]
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maxPixels := ResolutionToPixels(bestVideo.Resolution)
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for _, video := range m.VideoFeeds {
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pixels := ResolutionToPixels(video.Resolution)
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if video.Bandwidth > bestVideo.Bandwidth || pixels > maxPixels {
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bestVideo = video
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maxPixels = pixels
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}
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}
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return &bestVideo, m.FindAudioFeedByGroup(bestVideo.AudioGroup)
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}
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func (m *MasterPlaylist) FindAudioFeedByGroup(groupID string) *AudioPlaylist {
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for _, audio := range m.AudioFeeds {
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if audio.GroupID == groupID {
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return &audio
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}
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}
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return nil
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}
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